(b) It shall be an affirmative defense that such person had produced a photographic identification card apparently issued by a governmental entity and that the cannabis had been sold, delivered or given to such person in reasonable reliance upon such identification. In evaluating the applicability of such affirmative defense, the board shall take into consideration any written policy or training adopted and implemented by the licensee to prevent sales to minors. 3. No licensee or permittee shall knowingly sell, deliver or give away or cause or permit or procure to be sold, delivered or given away to a lawful cannabis consumer any amount of cannabis which they know would cause the lawful cannabis consumer to be in violation of this chapter or possession limits established by article two hundred twenty-two of the penal law. 4. The board, on the recommendation of the office shall have the authority to limit, by canopy, plant count, square footage or other means, the amount of cannabis allowed to be grown, processed, distributed or sold by a licensee. 5. All licenses under this article shall expire two years after the date of issue.